Spider Happy Face

Scientifically, this tiny arachnid goes by the name of Theridion grallator – but it takes little imagination to see how it got its more popular name: the happy-face spider.

Found only in rainforests in the Hawaiian islands, the spiders have a vast range of patterns and colours on their abdomens – yet all come from the same species.

The spiders are 5mm (less than a quarter of an inch) long and live alone on the underside of leaves – except during their mating season and for the first 40 to 100 days of spiderlings’ lives, when they are still too young to fend for themselves.